Surfacing



R. C. MUZZO July 14m SURFACING Filed Feb. 18, 1959 5 Sheets-Sheet l July 2, 194%; R Q MUZZQ 2,296,571

SURFACING Filed Feb. 18, 1939 5 Sheets-Sheet I5 ill Y 2, R. c. MUZZO SURFACING Filed Feb. 18, 1939 5 Sheets-Sheet 4 Patented July 2, 1940 I mean UNITED STATES PATENT OFFECE SURFAGING Ross C. Muzzo, Toledo, Ohio Application February 18, 1939, Serial No. 257,207 i 2 Claims. (01. 51-176) This invention relates to surfacing and re-surfacing, more particularly with portable power equipment.

This invention has utility when incorporated in apparatus for treatment in smoothing and finishing surfaces as of tables, platforms, floors and the like.

Referring to the drawings: Fig. l is a plan view, with parts broken away, of an embodiment of the invention in position on a bowling alley; i

Fig. 2 is a viewon the line II-II, Fig. 1, with parts broken away, showing in section from the rearward or'receding side the apparatus in position on a bowling alley;

Fig. 3 is a View in elevation from the right of Fig. 2 with the shell or cover portions removed and the track partly broken away;

Fig. 4 is a section on the line IV-IV, Fig. 3, showing features of the transmission;

Fig. 5 is a section on the line V--V, Fig. 4, showing the yieldable holding means for the clutch control; 4

Fig. 6 is a detail view on an enlarged scale on the line VI-VI, Fig. 4, showing the eccentric control pin in the clutch operation;

Fig. '7 is a view of the transmission or gear set-up, with parts broken away, on the line *VII-VII, Fig. 4;

Fig. 8 is a fragmentary view of the" surface planer adjusting meanson the line VIII-VIII,

Fig.3;

Fig. 9is a section on the line IX--IX, Fig. 8,

showing features of the cutter or planer;

Fig. 10 is a fragmentary view in side elevation of the offset cutter arrangement of the planer; Fig. 11 is a section on the line XI-XI, Fig. 2,

showing features of the drive between the surfacing rolls and adjustment as well as features of the mounting of the power or additional section on the main section;

Fig. 12 is a plan view, with parts broken away,

of the additional or power section embodying the motor and fan; Fig. 13 is a section on the line XIII-XIII, Fig.

11, showing features of the polishing or sanding.

roll;

Fig. 14 is an enlarged detail view on the line XIV-XIV, Fig. 13, showing the sand paper terminus anchoring device;

Fig. 15 is a section on the line XV-XV, Fig. 13, showing the ajustment or operating lock for the paper terminus fastening means;

Fig. 16 is a fragmentary view in side elevation, showing the substitutive or roller mounting as against self track propulsion for the main section or carrier; i

.Fig. 17 is ,a section on the line XVII-XVII, 2, showing features of the collector in the main section or carrier for transit to the additional section or fan;

Fig. 18 is a. section on the line XVIII-XVIII,

Fig. 17, on an enlarged scale, showing the at-- tachable tube or duct between the dust collector ways of the main section and the intake duct to the fan; i

Fig. 19 is a view on the line XIX XIX, Fig. 17, showing features of the dust collector in proximity to the planer or main cutter roll;

Fig. 20 is a detail view on an enlarged scale' in plan showing the shoe at the side way or gutter of the alley in providing a mounting for the track; 7

.Fig. 21 is a section on the line XXI-XXI, Fig.

.20, showing the assembly of this cutter-carried shoe for the track, parts being broken away;

Fig. 22is a fragmentary View of a cutteror planer roll having an angle of pitch for the cutter blades; and

. Fig. 23 is a view on the line ICXIIL XXIII,

. depinding leg 9 of which T-rail is definitely located between screws l ll. There is thus provided a leveling and sidewise locating substantial support for the T-rails 8, 9. These T-rails 8, 9, are,

as positioned by the socket screws 3, located in i v the troughs of the gutters or side ways 2. The rails are positioned for continuity throughout the side ways for the length of the alley or therebeyond and as therebetween for the pair of guttersspaced by the alley. This relationship therebetween is for parallelism and the sighting for the length of the alley is to determineaccuracy in direction and extent of inclination. There is predetermined a master control for bringing the surface of the alley between the ways to a finish condition. The track sections 8, 9, have dowels II controlling alignment between such. Furthermore, upstanding therefrom are additional dowels l2 and screw holes l3. 14 in anchoring rack sections I5 with the track 8, which rack sections are entered by the dowel pins I2 for supplementing the anchorings by way of the screws [4. There is thus provided a pair In these screw holes l3 may enter screws of parallel rack-carrying tracks at the adjacent sides of the alley, which tracks may be readily placed and removed to clear the alley.

This portable apparatus includes frame 16 (Figs. 2, 3) connected by parallel tubes I1. I3, with second frame I9. The tube I3 (Fig. 11) provides rockable bearing for pair of sockets 29, each having set screw 2| anchoring minor arm tubes 22 having weld connection with platform 23, on which is mounted by bolts 24 (Fig. 2) motor 25 as the prime mover herein. This motor 25 has shaft 23 protruding at one end to carry multi-blade fan 2'5 in housing 29 to create suc-.

tion on uptake elbow 29 and deliver particles't'o 42 in alignment with the shaft 35. The frame It I provides sleeve 93 in whichis stem i l having enlarged upper portion 45, from which extends radially operating arm or handle 59 (Fig. 3).

' There is thus provided means for turning the stem 44 on its axis so that normally locking ball 41 (Fig.- as thrust by compression helical spring 418 seated by screw plug 99 may be .effective while this ball 41 is in seat 50 to so posltion the stem 44 that its offset crank terminus '5I (Figs. 4. 6) engages in collar 52 of the clutch element 38. As the arm 95 is shifted so that the ball stop 41 rides from the seat 59 into seat 53 (Fig. 5), the crank 5| may be effective to withdraw the clutch element 38 fromengage- -ment with the clutch element 99 and thereby disconnect this power drive from transmission effectiveness as to the pinion 4|.

This pinion 4| (Fig. '7) is in mesh with gear 54 on shaft 55 fixed with pinion 59. This gear5 -l is in constant mesh with gear 51. Mounted on shaft 58 is control arm 59 (Figs. 3, 4|) carrying sleeve (59 housinghelical compression spring 6| normallythrusting detent 92 into seat 93. Operation of control handle 94 to clear this detent 32 of seat 63 and bring such to seat 95 shifts the control arm 59 and with it shaft 63 carrying'gear (57 from mesh relation with pinion 98 on shaft 99 fixed with the gear 51. This shifting of the gear 61 clear of the pinion I58 is into mesh relation with the pinion 53 and results in reverse direction higher speed rotation for this gear El, thence effective through its pinion to actuate gear 'II on the shaft 58. This gear II has fixed therewith pinion '52 in mesh with gear I3 on shaft I4. This shaft M has toothed portion in mesh with the rack I5 on the track Bin addition. to which other rollers may engage the track to distribute the support. This shaft M (Fig. 2) extends from the frame IE to the frame I9 and there has toothed portion E9 in mesh with the companion rack I5 on the companion or parallel track 8.

The cutter roll 31 (Figs. 8, 11) has, remote from its pulley end 39, pulley "I7 from which extend pair of belts I8 -to pulley I9 fixed with drum 99 parallel to the cutting roll or drum, 3?. This drum 99 is accordingly driven in the same direction and at a less peripheral speed at all times than the cutting roll 31 is operating whether or not the roll 31 be in contact with the surface. This driving of the surfacing rolls 3'I, 89, is at all times coincident with the driving of the propulsion means for the apparatus. However, in this functioning the surfacingrolls are, a.djustable to from the bearing 81.

not only a desired functioning position but to inoperative position for either or both thereof. To this end, key terminus 8| (Figs. 1, 2, 11) is fixed to sprocket wheel 82 and is onshaft 83 carrying worm B4 in mesh with worm wheel 85 for adjusting stemBB to bearing 81 for the driven end of the surfacing drum 89. This sprocket wheel 82 has sprocket chain 88 therefrom to sprocket wheel 89 (Fig. 2) on shaft 99 effective through worm wheel 9| (Fig. 3) in operating stem 92 in adjusting bearing 93 for the roll 89 remote This adjustment, say for 360 rotation of the actuator key 8| may be such as to raise or lower the surfacing drum 89 .005 of an inch and horizontal or parallel to the track as well as parallel to the cutter roll.

Adjacent this key 8| is key 94 on shaft 95 (Fig. 11) extending past the drum 89 and there carrying worm 96 in mesh with worm wheel 91 for adjusting stem 98 in positioning bearing 99 of the drum or cutter r011 31. This shaft 95 has thereon sprocket wheel I99 with sprocketv chain I9| therefrom to sprocket wheel I92 (Fig. 3) on shaft I93 having worm I94 in mesh with worm wheel on shaft I95 to adjust bearing I96 simultaneously with the bearing 99. This means that this cutting drum 31 is adjusted in parallelism as to the surfacing roll or drum 89 as well as in parallelism with the determined placing of the track. Likewise here this adjustment for a single rotation of the control key 94 may be for .095 of an inch in lifting or lowering this cutting roll planer.

These adjustable stems for the opposite ends of the planer roll have upwardly extending portion I9? (Fig. '8) upon which may rest screw stem I99 carried by extension arm I99 from the deck 23. There is thus a control for the load as on the cutting roll in this additional or auxiliary frame as carrying the motor and that this adjustment is a further feature in the belt tightener control.

High speed rotation cutter roll 31 (Figs. 8, 9. 10-) is shown with longitudinally extending ways or seats I I9 inwhich screws I II maylock cutter knives I I2. These seats II9 are staggered in overlapping relation so that continuity therebetween is effective in the high speed rotation of this planer or cutting tool for the more vigorous re-surfacing or surfacing operations.

In some practice, instead of seats II9 on the drum 31, there may be continuous pitch or spiral tween the successive cutting knives on a common drum 3I, the break termini or ends may be staggered. thereby to avoid ridges or roughening in the cutting region or the surface under treatment.

Supplemental finishing drum or roll 89 in the instance herein shown is provided with cushioning surface IIB (Figs. 13. 14, 15) such as sponge rubber, about which may be Wrapped the sheet II9 of abrasive such as sandpaper or emery cloth. The drum B9 is shown with slot I29, through which ends I2I of the sheet II9 may be drawn and assembled through slot I22 in shaft I23, protruding through the ends of the drum 89 to carry ratchet I24 which may be engaged by pawl I25 (Fig. 15) as rocked on fulcrum I29 and so held by set screw I2'I having lock nut I28. The initial settingor tightening of :thewrap of the. sheet V three or four hundred pounds.

abrasive for final surfacing or even polishing material may be as to its wrapping of the ends initially effected by a crank on keyed projection I29 of this shaft I23.

It is primarily contemplated that the drive for the re-surfacing action of the rolls shall be in the forward or slow speed direction only. Accordingly, there is provided material removal take-off or dust collector means at the riser side of these rolls and drums or cutter which are as herein shown turning in the direction against that in which the travel is being effected. Between the frames It, I3, extends rod I36 (Figs. 17, 19) having bracket I3I locating intake nozzles I32 having notchedor serrated lower terminus I33 adjusted with the roller or cutting drum in approximate contact with the surface I being acted upon. This nozzle I32 from its thin narrow intake enlarges, in its rise upward to communicate with cross duct I34 herein shown as having dual connection from the supply nozzles. Medially and therebetween this duct I34 has upstanding collar I35 into which may slip sleeve section I36 (Fig. 18)

from flexible depending intake elbow 33 of the multi-blade fan 21. This is accordingly a readily disconnectible passage permitting assembly in taking out as occasion may require.

In addition to this accumulation take-off device for the more harshly acting roll or drum 3?, there is positioned adjacent the roll 30 intake nozzle I38 also having trailing hinged serrated nozzle portion I33 similar to the trailing nozzle portion I33 from the nozzle I32. This portion is likewise serrated at its lower surface-contacting or approximately contacting terminus and shown having return bend I43. From this intake nozzle the thin or slot-like portion of the nozzle is inwardly tapered and thickened in upwardly extending portion Itl communicating with the cross duct I34 as a way for the finer removed portions than those from the roll 31, all to be accumulated in the collector, and from this collector into the receiver or bag 3|. This disconnectible duct connection wherein the collar I35 receives the sleeve I 36 for the flexible duct portion I31 allows entrance of this portion I 36 to the holding collar I42 as abutting the flanged collar I35.

The apparatus of this disclosure may be housed in detachable shell I43 (Figs. 1, 2). As occasion arises to shift the equipment, say from one set of alleys or courses to another, this shell I43 may be cleared from the assembled apparatus. The drive belts 31 are taken oif the drive pulley 32. Set screws 2| are released so that the arms 22 may be slipped free as the motor and fan unit is, with the deck 23, lifted and cleared as an additional or auxiliary section from the main section as carrying the surfacing devices. This removal is permitted for the duct disconnection is readily effected from the collar I35. In practice, this power unit may be of weight say around an approximately similar weight for the main section. These two sections are accordingly such that they may be readily re-located even to the This would leave.

means additional or power section but the main section I so that there may be ready shifting from alley to alley or even used for re-surfacing in progressing this mobile apparatus about a skating or dancing fioor or other surface to be treated.

In carrying out the invention herein, this power apparatus or equipment is such that it maybe operated for a once-over complete treatment of a surface as a bowling alley with such surface brought to a definite location and finish independent of what may have been the condition or inaccuracies theretofore. This means that an untoward condition is not inherited but is cleared off for the side ways permit the track location for definitely controlling the position. The adjustment of the surfacing means determines the depth of cut or finish to occur. This finish may be for the cutter or planer as the major surface portion removal and a sander or polisher for the final finish, and this operation in the disclosure herein may be at the rate of say3 feet a minute in the finishing direction, which on a 60 or 63 foot alley would mean that the complete finishing could be effected in not to exceed 21 minutes. The return to start on a different course is power effected at one-half this length of time or 10 or 11 minutes. Of course, if there be purpose in locating the depth of portions to be taken off, there may be running of say the cutter roll 37 alone to see if it is getting the final run may be of the roll 33 alone with the cutter 31' elevated clear or the cutter down for finishing cut and the roll 80 to effect the final surfacing.

The roll 83 has counterweight I47 (Fig. 11) to balance the strip or sheet tightening means.

What is claimed and it is desired to secure by United States Letters Patent is:

1. Apparatus for dressing the surface of bowling alleys having side ways embodying a carrier sustained from the side ways clear of the alley therebetween, rollers to support the carrier, tracks for the rollers including rack means, preset fixed sockets in the ways for the tracks, surfacing means mounted by the carrier, adjusting means between the carrier and surfacing means for positioning the surfacing means relatively to a carrier, a plurality of surfacing means mounted by the carrier, independent adjusting means between the carrier and respective surfacing means for positioning the surfacing means relatively to each other and the surface to be treated, a collector for surface removed material, said carrier including a main section and an additional section, said latter section providing mounting for a power drive and a fan actuated thereby, duct connections from the fan to the collector, transmission connections from the drive to the surfacing means, rocking bearing means provided by the main section, arm means extending therefrom for rockably mounting the additional section on the main section, and disconnecting means for the arm means as to the bearing ROSS C. MUZZO. 

